Quote:
Originally Posted by Th3Franz
TI have a background in power electronics so I am designing a circuit that will use the stock fuel pump control to reduce the speed of the pumps for idle and low load situations.
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How about just use the stock ECU PWM output to drive a power mosfet? You really have no reason to run the thing at 100% most of the time (it will DECREASE the life of the pump), just let the ECU do it's thing but with less total inline resistance fore the pump?
Quote:
Originally Posted by Boostin
Does the fuel pump controller vary the voltage through resistors? Or is the pump somehow pulsewidth modulated?
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It's PWM.